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Yorktown Management & Research Co Inc: RMBS position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Yorktown Management & Research Co Inc on RMBS, newest first. How the timeline and the estimate are built.

Yorktown Management & Research Co Inc held 4,950 RMBS shares at 2026-06-30 per its 13F-HR filed 2026-07-23.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 4,950 shares
    Change vs previous 13F -2,050 shares

    0.4% of the 13F portfolio, value $657,063.

    13F-HR 0001193125-26-313433 filed by Yorktown Management & Research Co Inc
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  2. period ended2026-03-31
    13F 7,000 shares
    Change vs previous 13F 0 shares

    0.5% of the 13F portfolio, value $602,210.

    13F-HR 0001193125-26-162911 filed by Yorktown Management & Research Co Inc
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-12-31
    13F 7,000 shares
    Change vs previous 13F 0 shares

    0.51% of the 13F portfolio, value $643,230.

    13F-HR 0001193125-26-020430 filed by Yorktown Management & Research Co Inc
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2025-09-30
    13F 7,000 shares
    Change vs previous 13F 0 shares

    0.58% of the 13F portfolio, value $729,400.

    13F-HR 0001193125-25-255399 filed by Yorktown Management & Research Co Inc
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  5. period ended2025-06-30
    13F 7,000 shares
    Change vs previous 13F 0 shares

    0.43% of the 13F portfolio, value $448,140.

    13F-HR 0000950123-25-006929 filed by Yorktown Management & Research Co Inc
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  6. period ended2025-03-31
    13F 7,000 shares
    Change vs previous 13F -10,800 shares

    0.39% of the 13F portfolio, value $362,425.

    13F-HR 0000950123-25-003639 filed by Yorktown Management & Research Co Inc
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  7. period ended2024-12-31
    13F 17,800 shares
    Change vs previous 13F 0 shares

    0.9% of the 13F portfolio, value $940,908.

    13F-HR 0000950123-25-000592 filed by Yorktown Management & Research Co Inc
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  8. period ended2024-09-30
    13F 17,800 shares
    Change vs previous 13F not available

    0.77% of the 13F portfolio, value $751,516.

    13F-HR 0000950123-24-009915 filed by Yorktown Management & Research Co Inc
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).